Filtering device for water-based paint manufacturing

Abstract

This invention relates to the field of filtration device technology, specifically a filtration device for water-based coating manufacturing, comprising a main pipe and branch pipes. Branch pipes are respectively arranged on the opposite outer walls of the main pipe. A flange is provided at the port of the main pipe, and an outer pipe is installed on the outer wall of the flange. A filter assembly is arranged on one side of the branch pipe and on the inner wall of the main pipe, and an extrusion assembly is arranged on the inner wall of the main pipe. This invention allows for the rotation and replacement of the filter plate via the filter assembly. A limiting spring applies tension to the filter screen plate, causing the filter screen plate to drive a rotating block to rotate on a rotating shaft, thereby unfolding the filter screen plate. Subsequently, the filter screen plate is subjected to reverse flushing by an electrically controlled nozzle, ensuring timely cleaning. The extrusion structure reciprocates up and down, pressing the material on the filter plate downwards. Simultaneously, the extrusion structure is guided by a spiral, and also applies downward rotating friction extrusion to the coating, resulting in greater force on the coating and increasing the filtration speed.

Description

Technical Field

[0001] This invention relates to the field of filtration device technology, specifically a filtration device for manufacturing water-based coatings. Background Technology

[0002] Water-based coatings are a type of coating that uses a subsequently emulsified emulsion as the film-forming substance. Their preparation involves dissolving a solvent-based resin in an organic solvent, followed by vigorous mechanical stirring with the aid of an emulsifier to uniformly disperse the resin in water, thus forming an emulsion—the so-called post-emulsified emulsion. These coatings can be easily diluted with water during application. To ensure the excellent performance of water-based coatings, vigorous and uniform mechanical stirring is essential during production to achieve optimal results. However, despite various preventative measures, it is still difficult to completely avoid the contamination of particulate impurities during the transport of various additives (such as auxiliaries and pigments). These tiny particulate impurities are often difficult to completely remove in the complex manufacturing process, thus posing a potential threat to the final quality of the coating. In the production of water-based coatings, the structural complexity of the filtration device presents challenges to equipment maintenance. When malfunctions occur or the filter screen needs cleaning or replacement, the maintenance process is not only time-consuming and labor-intensive, but also affects the practicality of the equipment. To improve the quality of water-based coatings, high filtration precision is required to remove tiny impurity particles. However, high-precision filtration often means smaller filter screen pore sizes and finer filter screen structures, which leads to slower filtration speeds and reduced filtration efficiency. Furthermore, because the filter screen is prone to clogging, it needs to be replaced regularly to ensure filtration effectiveness and production efficiency. Frequent filter screen replacements not only increase equipment downtime but also raise production costs, including filter screen procurement costs, labor replacement costs, and production losses due to downtime.

[0003] Therefore, a filtration device for water-based coating manufacturing is needed to improve the above-mentioned problems. Summary of the Invention

[0004] To address the problem that high-precision filtration often means smaller filter mesh size and finer filter mesh structure when filtering water-based coatings, which leads to slower filtration speed and reduced filtration efficiency, this invention provides a filtration device for water-based coating manufacturing to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A filtration device for manufacturing water-based coatings includes a main pipe and branch pipes. Branch pipes are respectively provided on the outer walls of the main pipe opposite to each other. A flange is provided at the port of the main pipe. An outer pipe is installed on the outer wall of the flange. A filter assembly is provided on one side of the branch pipe and on the inner wall of the main pipe. An extrusion assembly is provided on the inner wall of the main pipe. The filter assembly is provided with multiple sets of pipelines, and multiple sets of filter plates are installed in the gaps between the pipelines. At the same time, the sensor monitors the situation. When the filter plate is clogged, the filter assembly rotates and replaces the filter plate, and then the replaced filter plate is flushed. The extrusion assembly is provided with an extrusion structure. The extrusion structure reciprocates up and down to press down the material on the filter plate. When the extrusion structure moves down, it is guided by a spiral and also applies a downward rotating extrusion force to the coating.

[0006] As a preferred embodiment of the present invention, the filter assembly includes a lower mounting plate, an upper mounting plate, and an outlet pipe. The lower mounting plate is mounted on the inner wall of the main pipe. A lower guide tube is arranged in a ring array on the outer wall of the lower mounting plate. A guide slider is arranged on the opposite outer wall of the lower guide tube. A flow rate sensor is embedded in the outer wall of the lower guide tube, and the sensing end of the flow rate sensor passes through the lower guide tube and extends into the inner cavity of the lower guide tube. A servo motor is mounted on one side of the lower guide tube and on the outer wall of the lower mounting plate. A controller is arranged on the outer wall of the servo motor. The drive shaft of the servo motor passes through the lower mounting plate and extends to the outer wall of the lower mounting plate, where a magnetic rotating rod is connected.

[0007] As a preferred embodiment of the present invention, an electrical ring is installed on the outer wall of the magnetic rotating rod, and an electrically controlled magnetic ring is provided on the side wall of the electrical ring. The electrically controlled magnetic ring is rotatably connected to the outer wall of the magnetic rotating rod. A sleeve is fitted onto the outer wall of the magnetic rotating rod. One end of the sleeve is connected to the electrically controlled magnetic ring, and a rotating disk is installed at the other end of the sleeve. The rotating disk and the main tube are connected by a rotatable connection, and the outer wall of the rotating disk is provided with mounting grooves in a ring array.

[0008] As a preferred embodiment of the present invention, a rotating shaft is provided on the opposing inner wall of the mounting groove, and a rotating block is rotatably connected to the outer wall of the rotating shaft. A filter screen plate is installed at one end of the rotating block, and the filter screen plate is located on one side of the guide slider. The filter screen plate is located on the inner wall of the mounting groove, and a fixing block is provided directly below the rotating block and on the outer wall of the filter screen plate. One end of the fixing block is connected to the inner wall of the rotating disk via a limiting spring. The mounting plate is installed on the inner wall of the main pipe, and one end of the mounting plate is rotatably connected to the magnetic suction rod.

[0009] As a preferred embodiment of the present invention, the outer wall of the mounting plate is provided with guide grooves arranged in a ring array, and an upper guide tube is installed on the inner wall of the guide grooves, wherein the upper guide tube is located directly above the lower guide tube, and the filter screen plate is located between the upper guide tube and the lower guide tube. Multiple sets of liquid outlet pipes are provided and are respectively located on the inner wall of the main pipe, and an electrically controlled nozzle is installed at one end of the liquid outlet pipe, wherein the electrically controlled nozzle is located on one side of the filter screen plate.

[0010] As a preferred embodiment of the present invention, the extrusion assembly includes an upper mounting plate, a lower mounting plate, and a mounting block. The upper mounting plate is mounted on the inner wall of the main pipe. The lower mounting plate is located directly below the upper mounting plate and on the inner wall of the main pipe. The outer wall of the lower mounting plate is provided with a top tooth groove. The mounting block is mounted on the outer wall of the magnetic rotating rod. The mounting block is located directly above the upper mounting plate, and the top outer wall of the mounting block is provided with a bottom tooth groove.

[0011] As a preferred embodiment of the present invention, the bottom tooth groove is located directly below the top tooth groove and the bottom tooth groove and the top tooth groove are connected by an interlocking connection. A connecting pipe is installed in a ring array on the outer wall of the mounting top plate. A connecting spring is installed on one side of the connecting pipe and on the inner wall of the mounting top plate. An installation cylinder is installed at one end of the connecting spring.

[0012] As a preferred embodiment of the present invention, one end of the mounting cylinder is fixedly connected to the outer wall of the mounting bottom plate, a threaded groove is provided on the inner wall of the mounting cylinder, a limiting cylinder is threadedly connected to the inner wall of the threaded groove, a tension spring is provided on the top outer wall of the limiting cylinder, one end of the tension spring is connected to the top of the inner cavity of the mounting cylinder, a pressing block is installed on the bottom outer wall of the limiting cylinder, and an annular rubber ring is provided on the outer wall of the pressing block, wherein the pressing block is located directly above the guide groove.

[0013] In a preferred embodiment of the present invention, the controller is electrically connected to a flow sensor, a servo motor, an electrically controlled magnetic ring, and an electrically controlled nozzle via wires, and the magnetic rotating rod and the sleeve are connected by rotation.

[0014] In a preferred embodiment of the present invention, the rotating disk is located between the upper guide tube and the lower guide tube, the rotating block and the fixed block are both located in the inner cavity of the mounting groove, multiple sets of limiting springs are provided and are respectively located on the inner wall of the rotating disk, and multiple sets of limiting springs are provided and are respectively located on the outer wall of the mounting top plate.

[0015] Compared with existing technologies, this invention, by setting a filter assembly in the filtration device for water-based coating manufacturing, enables the filter plate to be replaced when it becomes clogged. The replaced filter plate is then flushed, thus replacing the filter screen. At this time, the replaced filter screen, without the support of the lower guide tube, is pulled by the limit spring, causing it to rotate on the outer wall of the shaft, thus unfolding the filter screen. The filter screen is then subjected to reverse flushing by the electrically controlled nozzles, ensuring timely cleaning. The device simplifies the replacement of the filter structure, thus solving the problem of regularly replacing filter screens to ensure filtration effect and production efficiency. Frequent filter screen replacements not only increase equipment downtime but also raise production costs.

[0016] This invention, by incorporating an extrusion assembly in a filtration device for water-based coating manufacturing, enables the extrusion structure to reciprocate and press down on the material in the filter plate. The extrusion structure is guided by a spiral and applies a downward rotating extrusion force to the coating. An mounting block drives the bottom tooth groove to rotate, and this reciprocating motion applies an upward thrust to the top tooth groove. As the top tooth groove reciprocates, it also causes the mounting plate to reciprocate, pressing the coating into the guide groove cavity. When the extrusion block is in contact with the guide groove, the force exerted on it by the guide groove causes the limiting cylinder to rotate the extrusion block. At this point, while the extrusion block is pressing down on the coating, it also applies rotational friction, resulting in a greater force on the coating and increasing the filtration speed. This addresses the problem that high-precision filtration often requires smaller filter mesh sizes and finer filter structures, which can lead to slower filtration speeds and reduced filtration efficiency.

[0017] This invention, through a servo motor drive shaft in a filtration device for water-based coating manufacturing, rotates a magnetically attracted rotating rod. This rod powers the extrusion assembly, enabling its operation. Simultaneously, when filter replacement is required, a controller energizes an electrically controlled magnetic ring, magnetically fixing the ring and the rotating rod. This causes the rotating rod to drive a sleeve, which in turn powers the filtration assembly, enabling its operation. This simpler structure achieves multiple functions, addressing the challenges posed by the complex structure of filtration devices in water-based coating production. Furthermore, it resolves the time-consuming and labor-intensive maintenance issues that arise when malfunctions occur or filters need cleaning or replacement, thus impacting the device's usability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main body cross-sectional structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a schematic diagram of the extrusion assembly structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of structure A; Figure 6 For the present invention Figure 4 Enlarged schematic diagram of structure B; Figure 7 This is a schematic diagram of the filter assembly structure of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the mounting plate of the present invention; Figure 9 For the present invention Figure 8An enlarged schematic diagram of the C-structure.

[0019] In the diagram: 1. Main pipe; 2. Branch pipe; 3. Flange; 4. Outer pipe; 5. Filter assembly; 501. Lower mounting plate; 502. Upper mounting plate; 503. Discharge pipe; 504. Lower guide pipe; 505. Guide slider; 506. Flow sensor; 507. Servo motor; 508. Controller; 509. Magnetic rotating rod; 510. Electrical ring; 511. Electrically controlled magnetic ring; 512. Sleeve; 513. Rotating disk; 514. Mounting groove; 515. Rotating shaft; 516. Rotating block; 5 17. Filter screen plate; 518. Fixing block; 519. Limiting spring; 520. Guide groove; 521. Upper guide tube; 522. Electrically controlled nozzle; 6. Extrusion assembly; 601. Install upper top plate; 602. Install lower top plate; 603. Mounting block; 604. Top tooth groove; 605. Bottom tooth groove; 606. Connecting pipe; 607. Connecting spring; 608. Mounting cylinder; 609. Threaded groove; 610. Limiting cylinder; 611. Tension spring; 612. Extrusion block; 613. Annular rubber ring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Example: Please refer to Figure 1-9 A filtration device for manufacturing water-based coatings is shown, comprising a main pipe 1 and branch pipes 2. Branch pipes 2 are respectively provided on the opposite outer walls of the main pipe 1. A flange 3 is provided at the port of the main pipe 1. An outer pipe 4 is installed on the outer wall of the flange 3. A filter assembly 5 is provided on one side of the branch pipe 2 and on the inner wall of the main pipe 1. An extrusion assembly 6 is provided on the inner wall of the main pipe 1. The filter assembly 5 is equipped with multiple sets of pipelines, and multiple sets of filter plates are installed in the gaps between the pipelines. At the same time, the sensor monitors the situation. When the filter plate is clogged, the filter assembly 5 rotates and replaces the filter plate, and then the replaced filter plate is flushed. The extrusion assembly 6 is equipped with an extrusion structure. The extrusion structure reciprocates up and down to press down the material on the filter plate. When the extrusion structure moves down, it is guided by a spiral and also applies a downward rotating extrusion force to the coating.

[0022] In this embodiment, specific references Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 The filter assembly 5 includes a lower mounting plate 501, an upper mounting plate 502, and an outlet pipe 503. The lower mounting plate 501 is mounted on the inner wall of the main pipe 1. A lower conduit 504 is arranged in a ring array on the outer wall of the lower mounting plate 501. Guide sliders 505 are arranged on the opposite outer walls of the lower conduit 504. A flow rate sensor 506 is embedded in the outer wall of the lower conduit 504, with its sensing end penetrating through the lower conduit 504 and extending into its inner cavity. A servo motor 507 is mounted on one side of the lower conduit 504, located on the outer wall of the lower mounting plate 501. A controller 508 is arranged on the outer wall of the servo motor 507. The drive shaft of the servo motor 507 passes through the mounting lower plate 501 and extends to the outer wall of the mounting lower plate 501, where a magnetic attraction rod 509 is connected. An electrical ring 510 is installed on the outer wall of the magnetic attraction rod 509, and an electrically controlled magnetic ring 511 is provided on the side wall of the electrical ring 510. The electrically controlled magnetic ring 511 is rotatably connected to the outer wall of the magnetic attraction rod 509. A sleeve 512 is sleeved on the outer wall of the magnetic attraction rod 509. One end of the sleeve 512 is connected to the electrically controlled magnetic ring 511, and the other end of the sleeve 512 is equipped with a rotating disk 513. The rotating disk 513 is rotatably connected to the main pipe 1, and the outer wall of the rotating disk 513 is provided with mounting grooves 5 in a ring array. 14. A rotating shaft 515 is provided on the opposing inner wall of the mounting groove 514. A rotating block 516 is rotatably connected to the outer wall of the rotating shaft 515. A filter screen plate 517 is installed at one end of the rotating block 516. The filter screen plate 517 is located on one side of the guide slider 505. The filter screen plate 517 is located on the inner wall of the mounting groove 514. A fixing block 518 is provided directly below the rotating block 516 and on the outer wall of the filter screen plate 517. One end of the fixing block 518 is connected to the inner wall of the rotating disk 513 via a limiting spring 519. Multiple sets of limiting springs 519 are provided and are located on the inner wall of the rotating disk 513. The upper plate 502 is mounted on the inner wall of the main pipe 1 and is located on the outer wall of the upper plate 601. The upper plate 502 is rotatably connected to one end of the magnetic rod 509. The outer wall of the upper plate 502 is provided with guide grooves 520 in a ring array. The inner wall of the guide grooves 520 is provided with an upper guide tube 521, which is located directly above the lower guide tube 504. The filter screen plate 517 is located between the upper guide tube 521 and the lower guide tube 504. Multiple sets of liquid outlet pipes 503 are provided and are located on the inner wall of the main pipe 1. One end of the liquid outlet pipe 503 is provided with an electrically controlled nozzle 522, which is located on one side of the filter screen plate 517. Based on the above structural features and connection relationships, the connection between the electrically controlled magnetic ring 511 and the magnetically attracted rotating rod 509 is a magnetic connection. When the electrically controlled magnetic ring 511 is energized and generates magnetism, it will magnetically attract the magnetically attracted rotating rod 509 for fixation. When the electrically controlled magnetic ring 511 is de-energized and loses its magnetism, the electrically controlled magnetic ring 511 and the magnetically attracted rotating rod 509 will rotate and connect. Since the mounting lower plate 501 and mounting upper plate 502 divide the inner cavity of the main pipe 1 into multiple separate cavities, the coating on one side of the filter screen plate 517 moves along the channel formed by the upper guide tube 521 and the lower guide tube 504, located outside the upper guide tube 521 and the lower guide tube 504 and inside the main pipe 1. When the electrically controlled nozzle 522 reverses the flushing of the filter screen plate 517, the waste liquid from the flushing will flow out along the branch pipe 2.

[0023] In this embodiment, specific references Figure 2 , Figure 5 and Figure 6 The extrusion assembly 6 includes an upper mounting plate 601, a lower mounting plate 602, and a mounting block 603. The upper mounting plate 601 is mounted on the inner wall of the main pipe 1. The lower mounting plate 602 is located directly below the upper mounting plate 601 and on the inner wall of the main pipe 1. The outer wall of the lower mounting plate 602 has a top tooth groove 604. The mounting block 603 is mounted on the outer wall of the magnetic rotating rod 509. The mounting block 603 is located directly above the upper mounting plate 502, and a bottom tooth groove 605 is mounted on the top outer wall of the mounting block 603. The bottom tooth groove 605 is located directly below the top tooth groove 604, and the bottom tooth groove 605 and the top tooth groove 604 are connected by an interlocking connection. A connecting pipe 606 is installed in a circular array on the outer wall of the upper mounting plate 601. A connecting spring is installed on one side of the connecting pipe 606 and on the inner wall of the upper mounting plate 601. 607, One end of the connecting spring 607 is equipped with an installation cylinder 608. One end of the installation cylinder 608 is fixedly connected to the outer wall of the mounting lower top plate 602. The inner wall of the installation cylinder 608 is provided with a threaded groove 609. A limiting cylinder 610 is threadedly connected to the inner wall of the threaded groove 609. A tension spring 611 is provided on the top outer wall of the limiting cylinder 610. One end of the tension spring 611 is connected to the top of the inner cavity of the installation cylinder 608. A pressing block 612 is installed on the bottom outer wall of the limiting cylinder 610. An annular rubber ring 613 is provided on the outer wall of the pressing block 612. The pressing block 612 is located directly above the guide groove 520. When the external paint is injected into the main pipe 1, its paint connecting pipe 606 flows to one side of the mounting lower top plate 602, thereby allowing the paint to flow into the inner cavity of the guide groove 520 so that the filter screen plate 517 can filter the paint. The controller 508 is electrically connected to the flow rate sensor 506, servo motor 507, electric magnetic ring 511, and electric nozzle 522 via wires, thereby energizing the device. This allows the controller 508 to control the flow rate sensor 506, servo motor 507, electric magnetic ring 511, and electric nozzle 522 to operate. The magnetic rod 509 and sleeve 512 are connected by a rotatable connection. The rotating disk 513 is located between the upper guide tube 521 and the lower guide tube 504. The rotating block 516 and the fixed block 518 are both located in the inner cavity of the mounting groove 514.

[0024] In this solution, the filtration device for water-based coating manufacturing operates by embedding a flow rate sensor 506 on the outer wall of the lower conduit 504. The sensing end of the flow rate sensor 506 penetrates the lower conduit 504 and extends into its inner cavity, allowing the flow rate sensor 506 to measure the velocity of the fluid within the lower conduit 504. Simultaneously, the flow rate sensor 506 generates an electrical signal, which is transmitted to the controller 508 via a wire. When a set value is reached, a magnetic suction rod 509 is connected to the drive shaft of the servo motor 507, which penetrates the mounting plate 501 and extends to its outer wall. An electrical ring 510 is mounted on the outer wall of the magnetic suction rod 509, and an electrically controlled magnetic ring 511 is mounted on its side wall. The electrically controlled magnetic ring 511 is rotatably connected to the outer wall of the magnetic suction rod 509. A sleeve 512 is fitted onto the outer wall of the magnetic suction rod 509. One end of the sleeve 512 is connected to an electrically controlled magnetic ring 511, and the other end of the sleeve 512 is equipped with a rotating disk 513. The rotating disk 513 and the main pipe 1 are connected by a rotational connection. Under the action of the controller 508, the servo motor 507 is operated, which in turn causes the drive shaft of the servo motor 507 to drive the magnetic rod 509 to rotate. The magnetic rod 509 rotates on the outer wall of the mounting plate 502. At the same time, the controller 508 controls the electrically controlled magnetic ring 511 to be energized to generate magnetism, which causes the electrically controlled magnetic ring 511 and the magnetic rod 509 to be magnetically attracted. When the magnetic rod 509 rotates, it drives the electrically controlled magnetic ring 511 to rotate, which in turn drives the sleeve 512 to rotate. Subsequently, the sleeve 512 drives the rotating disk 513 to rotate, which rotates on the inner wall of the main pipe 1. When the rotating disk 513 rotates, it causes the filter screen plate 517 to rotate. Guide grooves 520 are arranged in a circular array on the outer wall of the upper mounting plate 502. An upper guide tube 521 is installed on the inner wall of the guide grooves 520, with the upper guide tube 521 located directly above the lower guide tube 504. The filter screen plate 517 is positioned between the upper guide tube 521 and the lower guide tube 504. When the rotating disk 513 rotates, the lower guide tube 504 is arranged in a circular array on the outer wall of the lower mounting plate 501. The outer walls of the lower guide tube 504 are opposite to the lower guide tube 504. With the guide slider 505 in place, the guide slider 505, located on one side of the filter screen plate 517, guides the filter screen plate 517, causing it to slide to one side on the outer wall of the guide slider 505. This moves the filter screen plate 517 between the upper guide tube 521 and the lower guide tube 504, allowing for replacement of the filter screen plate 517. The replaced filter screen plate 517, having moved out of the space between the upper guide tube 521 and the lower guide tube 504, [is affected by the filter screen plate 517]. Without the support of the lower guide tube 504, mounting grooves 514 are arranged in a ring array on the outer wall of the rotating disk 513. A rotating shaft 515 is mounted on the opposite inner wall of the mounting grooves 514. A rotating block 516 is rotatably connected to the outer wall of the rotating shaft 515. A filter screen plate 517 is mounted on one end of the rotating block 516. The filter screen plate 517 is located on one side of the guide slider 505. The filter screen plate 517 is located on the inner wall of the mounting groove 514. A fixing block 518 is located directly below the rotating block 516 and on the outer wall of the filter screen plate 517. One end of the fixed block 518 is connected to the inner wall of the rotating disk 513 via a limiting spring 519. The mounting plate 502 is installed on the inner wall of the main pipe 1. When the mounting plate 502 is rotatably connected to one end of the magnetic suction rod 509, the limiting spring 519 will extend, thereby causing the limiting spring 519 to lose tension on the fixed block 518. The fixed block 518 applies tension to the filter screen plate 517, which will cause the filter screen plate 517 to drive the rotating block 516 to rotate on the outer wall of the rotating shaft 515, thereby causing the filter screen plate 517 to unfold. Multiple sets of nozzles 522 are installed on the inner wall of the main pipe 1 through the outlet pipe 503. One end of the outlet pipe 503 is equipped with an electrically controlled nozzle 522. The electrically controlled nozzle 522 is located on one side of the filter screen plate 517. At the same time, the controller 508 controls the electrically controlled nozzle 522 to operate, thereby causing the electrically controlled nozzle 522 to flush the filter screen plate 517. The filter screen plate 517 is flushed in reverse by the electrically controlled nozzle 522, thereby cleaning the filter screen plate 517 in a timely manner. The device makes the replacement of the filter structure simpler, thus solving the problem of regularly replacing the filter screen to ensure the filtration effect and production efficiency. Frequent replacement of the filter screen not only increases the downtime of the equipment, but also increases the production cost. A top tooth groove 604 is provided on the outer wall of the mounting plate 602. The mounting block 603 is installed on the outer wall of the magnetic rotating rod 509. The mounting block 603 is located directly above the mounting plate 502, and a bottom tooth groove 605 is installed on the top outer wall of the mounting block 603. The bottom tooth groove 605 is located directly below the top tooth groove 604, and the bottom tooth groove 605 and the top tooth groove 604 are connected in an meshing manner. When the drive shaft of the servo motor 507 drives the magnetic rotating rod 509 to rotate, the magnetic rotating rod 509 drives the mounting block 603 to rotate, which in turn drives the bottom tooth groove 605 to rotate. When 605 rotates, the bottom tooth groove 605 and the top tooth groove 604 make clearance contact. When the top end of the bottom tooth groove 605 contacts the bottom end of the top tooth groove 604, the bottom tooth groove 605 lifts the top tooth groove 604. Conversely, when the bottom end of the bottom tooth groove 605 contacts the top end of the top tooth groove 604, the top tooth groove 604 slides into the inner cavity of the bottom tooth groove 605, thereby causing the bottom tooth groove 605 to reciprocate and apply an upward thrust to the top tooth groove 604. When the top tooth groove 604 reciprocates, it also applies a reciprocating thrust to the mounting lower top plate 602. When the lower mounting plate 602 is reciprocated under force, the connecting spring 607 causes the mounting plate 602 to drive the mounting cylinder 608 to reciprocate downwards. This, in turn, causes the mounting cylinder 608 to drive the extrusion block 612 to press down on the coating material inside the guide groove 520, subjecting the coating material to greater pressure. This accelerates the flow of the coating material through the filter screen plate 517. Simultaneously, when the extrusion block 612 contacts the inner wall of the guide groove 520, the annular rubber ring 613 on the outer wall of the extrusion block 612 provides a sealing effect. Furthermore, the force exerted on the extrusion block 612 by the guide groove 520 causes the extrusion block 612 to... 12. The limiting cylinder 610 moves upward within the inner cavity of the mounting cylinder 608 due to the force. Since the limiting cylinder 610 and the mounting cylinder 608 are connected by a spiral, when the limiting cylinder 610 moves within the inner cavity of the mounting cylinder 608, it causes the extrusion block 612 to rotate. At this time, when the extrusion block 612 extrudes the coating material downward, it also rotates and rubs the coating material, thus applying a greater force to the coating material. This can increase the filtration speed of the coating material, thereby solving the problem that high-precision filtration often means smaller filter mesh size and finer filter mesh structure, which will lead to slower filtration speed and reduced filtration efficiency. When the drive shaft of the servo motor 507 drives the magnetic rod 509 to rotate, the magnetic rod 509 provides power to the extrusion assembly 6, enabling the extrusion assembly 6 to operate. At the same time, when the filter element needs to be replaced, the controller 508 controls the electric magnetic ring 511 to be energized, thereby magnetically fixing the electric magnetic ring 511 and the magnetic rod 509, so that the magnetic rod 509 drives the sleeve 512 to rotate, and the magnetic rod 509 provides power to the filter assembly 5, enabling the filter assembly 5 to operate. The structure is simpler and achieves different functions, thus solving the problem that the structural complexity of the filtration device in the water-based coating production process brings challenges to equipment maintenance. Once a fault occurs or the filter screen needs to be cleaned or replaced, the maintenance process is not only time-consuming and laborious, but also affects the practicality of the device.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for manufacturing water-based coatings, comprising a main pipe (1) and branch pipes (2), characterized in that: Branch pipes (2) are respectively provided on the outer walls opposite to the main pipe (1). A flange (3) is provided at the port of the main pipe (1). An outer pipe (4) is installed on the outer wall of the flange (3). A filter assembly (5) is provided on one side of the branch pipe (2) and on the inner wall of the main pipe (1). An extrusion assembly (6) is provided on the inner wall of the main pipe (1). The filter assembly (5) is provided with multiple sets of pipelines, and multiple sets of filter plates are provided in the gaps between the pipelines. At the same time, the sensor monitors the filter plate. When the filter plate is blocked, the filter assembly (5) rotates and replaces the filter plate, and then rinses the replaced filter plate. The extrusion assembly (6) is provided with an extrusion structure. The extrusion structure reciprocates up and down to press down the material on the filter plate. When the extrusion structure moves down, it is guided by a spiral and also applies a downward extrusion force to the coating.

2. The filtration device for manufacturing water-based coatings according to claim 1, characterized in that: The filter assembly (5) includes a lower mounting plate (501), an upper mounting plate (502), and an outlet pipe (503). The lower mounting plate (501) is mounted on the inner wall of the main pipe (1). A lower guide tube (504) is arranged in a ring array on the outer wall of the lower mounting plate (501). A guide slider (505) is arranged on the opposite outer wall of the lower guide tube (504). A flow rate sensor (506) is embedded in the outer wall of the lower guide tube (504). The sensing end of the sensor (506) passes through the lower conduit (504) and extends into the inner cavity of the lower conduit (504). A servo motor (507) is installed on one side of the lower conduit (504) and on the outer wall of the mounting plate (501). A controller (508) is provided on the outer wall of the servo motor (507). The drive shaft of the servo motor (507) passes through the mounting plate (501) and extends to the outer wall of the mounting plate (501) where a magnetic rotating rod (509) is connected.

3. A filtration device for manufacturing water-based coatings according to claim 2, characterized in that: An electrical ring (510) is installed on the outer wall of the magnetic rotating rod (509), and an electrically controlled magnetic ring (511) is provided on the side wall of the electrical ring (510). The electrically controlled magnetic ring (511) is rotatably connected to the outer wall of the magnetic rotating rod (509). A sleeve (512) is sleeved on the outer wall of the magnetic rotating rod (509). One end of the sleeve (512) is connected to the electrically controlled magnetic ring (511), and the other end of the sleeve (512) is equipped with a rotating disk (513). The rotating disk (513) and the main pipe (1) are connected by a rotating connection, and the outer wall of the rotating disk (513) is provided with mounting grooves (514) in a ring array.

4. A filtration device for manufacturing water-based coatings according to claim 3, characterized in that: A rotating shaft (515) is provided on the opposite inner wall of the mounting groove (514). A rotating block (516) is rotatably connected to the outer wall of the rotating shaft (515). A filter screen plate (517) is installed at one end of the rotating block (516). The filter screen plate (517) is located on one side of the guide slider (505). The filter screen plate (517) is located on the inner wall of the mounting groove (514). A fixing block (518) is provided directly below the rotating block (516) and on the outer wall of the filter screen plate (517). One end of the fixing block (518) is connected to the inner wall of the rotating disk (513) via a limiting spring (519). The mounting plate (502) is installed on the inner wall of the main pipe (1). The mounting plate (502) is rotatably connected to one end of a magnetic suction rod (509).

5. A filtration device for manufacturing water-based coatings according to claim 4, characterized in that: The outer wall of the mounting plate (502) is provided with guide grooves (520) arranged in a ring array. The inner wall of the guide grooves (520) is provided with an upper guide tube (521), wherein the upper guide tube (521) is located directly above the lower guide tube (504), and the filter screen plate (517) is located between the upper guide tube (521) and the lower guide tube (504). The liquid outlet pipe (503) is provided in multiple sets and is located on the inner wall of the main pipe (1), and an electrically controlled nozzle (522) is installed at one end of the liquid outlet pipe (503). The electrically controlled nozzle (522) is located on one side of the filter screen plate (517).

6. A filtration device for manufacturing water-based coatings according to claim 5, characterized in that: The extrusion assembly (6) includes an upper mounting plate (601), a lower mounting plate (602), and a mounting block (603). The upper mounting plate (601) is mounted on the inner wall of the main pipe (1). The lower mounting plate (602) is located directly below the upper mounting plate (601) and on the inner wall of the main pipe (1). The outer wall of the lower mounting plate (602) is provided with a top tooth groove (604). The mounting block (603) is mounted on the outer wall of the magnetic rotating rod (509). The mounting block (603) is located directly above the upper mounting plate (502), and the top outer wall of the mounting block (603) is provided with a bottom tooth groove (605).

7. A filtration device for manufacturing water-based coatings according to claim 6, characterized in that: The bottom tooth groove (605) is located directly below the top tooth groove (604), and the bottom tooth groove (605) and the top tooth groove (604) are connected by meshing. A connecting pipe (606) is installed in a ring array on the outer wall of the mounting top plate (601). A connecting spring (607) is installed on one side of the connecting pipe (606) and on the inner wall of the mounting top plate (601). An mounting cylinder (608) is installed at one end of the connecting spring (607).

8. A filtration device for manufacturing water-based coatings according to claim 7, characterized in that: One end of the mounting cylinder (608) is fixedly connected to the outer wall of the mounting bottom plate (602). A threaded groove (609) is provided on the inner wall of the mounting cylinder (608). A limiting cylinder (610) is threadedly connected to the inner wall of the threaded groove (609). A tension spring (611) is provided on the top outer wall of the limiting cylinder (610). One end of the tension spring (611) is connected to the top of the inner cavity of the mounting cylinder (608). A pressing block (612) is installed on the bottom outer wall of the limiting cylinder (610). An annular rubber ring (613) is provided on the outer wall of the pressing block (612). The pressing block (612) is located directly above the guide groove (520).

9. A filtration device for manufacturing water-based coatings according to claim 8, characterized in that: The controller (508) is connected to the flow rate sensor (506), servo motor (507), electric magnetic ring (511) and electric nozzle (522) via wires, and the connection method is electrical connection. The magnetic rotating rod (509) and sleeve (512) are connected by rotation.

10. A filtration device for manufacturing water-based coatings according to claim 9, characterized in that: The rotating disk (513) is located between the upper guide tube (521) and the lower guide tube (504). The rotating block (516) and the fixed block (518) are both located in the inner cavity of the mounting groove (514). Multiple sets of limiting springs (519) are provided and are located on the inner wall of the rotating disk (513). Multiple sets of limiting springs (519) are provided and are located on the outer wall of the mounting top plate (601).

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